ReFS is able to detect corruptions in a filesystem and repair the corruptions without taking storage offline or making the data unavailable, providing increased reliability and data integrity.

When used in Storage Spaces integration scenarios, ReFS detects and repairs data corruption automatically, with no downtime. Moreover, if a volume is corrupted and there is no alternative copy of the corrupted data, ReFS removes the corrupted data from the namespace.

During read and write operations, a process named scrubber occasionally scans the volume and automatically corrects the errors if the corrupt data is found.